Mardi Gras is a US-LA state holiday, not just a US-LA-NO area holiday

[ammulder]

US.yaml shows:

LA:
        name: Louisiana
        zones:
          - America/Chicago
        days:
          easter -2:
            _name: easter -2
          tuesday after 1st monday in November in even years:
            name:
              en: Election Day
        regions:
          NO:
            name: New Orleans
            days:
              easter -47:
                _name: easter -47
                name:
                  en: Mardi Gras

However, Mardi Gras is a state-wide holiday: https://www.doa.la.gov/doa/hr/state-holiday-calendar/ (as is, apparently, the day before it)